Tuning and Stabilization of Laser Diodes by a Planar Optical Wavelength Analyzer

For many applications of narrow-band light sources such as edge-emitting laser diodes or VCSELs, it is important to know the spectral properties of the optical beam, and it is required that we be able to control the spectrum actively. However, conventional solutions such as tunable lasers or thermal light sources in combination with monochromators are expensive and, in the latter case, very bulky.

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